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XRD, Raman and FT-IR spectroscopic observations of nanosized TiO2 synthesized by the sol-gel method based on an esterification reaction (CROSBI ID 85848)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Ivanda, Mile ; Musić, Svetozar ; Popović, Stanko ; Gotić, Marijan ; XRD, Raman and FT-IR spectroscopic observations of nanosized TiO2 synthesized by the sol-gel method based on an esterification reaction // Journal of molecular structure, 481 (1999), Special issue SI; 645-649. doi: 10.1016/S0022-2860(98)00783-2

Podaci o odgovornosti

Ivanda, Mile ; Musić, Svetozar ; Popović, Stanko ; Gotić, Marijan ;

engleski

XRD, Raman and FT-IR spectroscopic observations of nanosized TiO2 synthesized by the sol-gel method based on an esterification reaction

Ti(IV)-isopropoxide was hydrolyzed with water molecules generated "in situ" by an esterification between carboxylic acid and alcohol providing excellent control of the hydrolysis and condensation rate. Raman and FT-IR spectra of the TiO2-acetate precursor suggested that the organic ligand is chemically bound to the titanium. With heating of the TiO2-acetate precursor up to 320 degrees C, the surface area increased from 3 to 280 m(2) g(-1). The organic component completely decomposed above 320 degrees C. With a further increase in temperature, the surface area of the nanocrystalline anatase gradually decreased. The method of low-frequency Raman scattering was used to determine the particle size in dependence on experimental conditions, and a good agreement was obtained with the crystallite size determination using the Scherrer method.

sol-gel ; TiO2 ; nanocrystalline anatase ; XRD ; Raman ; FTIR ; bet

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Podaci o izdanju

481 (Special issue SI)

1999.

645-649

objavljeno

0022-2860

10.1016/S0022-2860(98)00783-2

Povezanost rada

Fizika, Kemija

Poveznice
Indeksiranost